$OpenBSD: patch-libproxy_CMakeLists_txt,v 1.4 2013/06/09 09:40:19 ajacoutot Exp $

https://code.google.com/p/libproxy/issues/detail?id=196&thanks=196&ts=1370457244

--- libproxy/CMakeLists.txt.orig	Fri Nov 30 17:31:35 2012
+++ libproxy/CMakeLists.txt	Wed Jun  5 15:00:37 2013
@@ -7,7 +7,7 @@ if (WIN32)
   add_definitions(-D_CRT_SECURE_NO_WARNINGS=1)
 else(WIN32)
   add_definitions(-D_POSIX_C_SOURCE=200112L)
-  set(CMAKE_CXX_FLAGS "-fvisibility=hidden ${CMAKE_CXX_FLAGS}")
+  set(CMAKE_CXX_FLAGS "-fvisibility=hidden -pthread ${CMAKE_CXX_FLAGS}")
 endif(WIN32)
 
 ### Modules
